126 DE. J. G. DE MAN OS. THE PODOPHTHALMOTJS 



ttose whicL. separate the epibrancliial from the mesohranchial 

 regions, are also distinct, but the branchio-cardiac sutural lines 

 are faintly marked. The anterior is nevertheless distinctly de- 

 fined from the posterior cardiac region, and even the grooves 

 which define the mesogastric from the protogastric area are 

 faintly indicated. Furthermore, on each side of the carapace a 

 groove is observed close and parallel to the posterior margin of 

 the cephalothorax, above the bases of the posterior legs. 



The upper surface is granular anteriorly and on the lateral 

 regions ; the granules present the following distribution. A few 

 granules are found on the anterior and lateral portions of the 

 gastric region, but more numerous and somewhat larger granules 

 are observed on the hepatic and branchial regions. No granules 

 are found on the mesogastric and cardiac regions. The upper 

 surface, especially posteriorly, is also seen to be punctate, when 

 examined under a magnifying-glass, and is slightly pubescent, 

 especially in the interregional grooves and on the lateral regions. 

 The front is strongly, nearly vertically, deflexed ; its breadth, 

 measured between the eye-peduncles, is a fifth of the distance 

 between the external orbital angles. Its anterior margin is slightly 

 emarginate in the middle, and the antero-external angles are 

 rounded ; its upper surface is minutely granulate and slightly 

 pubescent, and is bordered posteriorly by the two ridge-like, 

 transverse, smooth, epigastric lobes, and presents a faintly marked 

 mesial furrow, which is bifurcated immediately behind the epi- 

 gastric ridges, the two bifurcations including the anterior end 

 of the mesogastric area. 



The orbits are transverse and their upper margin is minutely 

 denticulate or crenulate. The lateral margins of the cephalo- 

 thorax, which are nearly straight, present three acute teeth, in- 

 cluding the external orbital angles. The first tooth, or external 

 orbital angle, is acute and directed outwards and slightly forwards ; 

 the external margin of this tooth is armed with two or three 

 minute teeth. The first antero-lateral tooth is separated from 

 the next by a deep triangular incision. The second tooth is much 

 larger than the first, about once and a half as long, and is very 

 acute ; being directed also transversely outwards and forwards, 

 it projects a little more outwards than the first tooth, so that the 

 cephalothorax presents its greatestwidth between the second teeth. 

 The external margin of the second tooth is also minutely denti- 



